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(No Model.) '2 Sheets-"Sheet l. E. S. HAGEN'. ROTARY STEAM ENGINE.A

Patented Nov. 9,'1'897.

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No. 593,375. Patented Nov, 9,1897.

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. UNITED u STATES PATENT OFFICE.

ERIK S. HAGEN, OF CHICAGO, ILLINOIS,ASSIGNCR CF ONE-HALF TC CLAUS F. ROBERG, OF SAME PLACE.

- ROTARY STEAM-ENGINE.'

SPECIFICATION forming part of Letters Patent No. 593,375, dated November 9, 1897.

Application filed January 22,1897. Serial No. 620,171. (No model.)

To a/ZZ whom it may concern,.-

Be it known that I, ERIK S. HAGEN, asubject of the King of Sweden and Norway, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Rotary Steam- Engines; and I do declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had-to the accompanying drawings, and to the gures of reference marked thereon, which form a part of this speciiication.

This invention relates to that type of rotary steam-engines in which power is applied by the impact of the steam upon a rotary part; and its obj ect is to provide a construction whereby all of the steam-pressure becomes available, they steam being applied to a succession of motors which drive a shaft common to all, so that the exhaust may be atl a pressure as low as desired.

The details of the construction whereby the object of the invention is attained arefully set out in the following specification.

In the drawings, Figure 1 is a central longitudinal vertical section of the engine. Fig. 2 is a side elevation of the same. Fig. 3 is a sectional view on the line 3 3 of Fig. 1. Fig. 4 is a sectional view on the line 4 4 of Fig. 1. Fig. 5 is a detail on the line 5 5 of Fig. 5. Fig. 6 is details of the construction of the rotating parts. Fig. 7 is an elevation of the disk face of one of the rotating parts, and Fig. Sis a detail section on the line 8 S of Fig. 1.

The body of the engine is cylindrical in form and is securely bolted to a bed-plate l5 and is built up of a plurality of cylindrical sections, as shown, six in number and designated 9, 10, 11, 12, 13, and 14, all securely bolted together. The first section 9 has a somewhat commodious annular channel formed in its inner face to serve as a steamchest, and the steam-pipe 23 enters this chest, which is closed or covered by the vnext section 10. Section 10 is provided with a plurality of steam-ducts 10i, as shown, two in number and diametrically disposed. These ducts pass obliquely through the section,

bearingin the direction in which the moving part of the engineis desired to rotate.

The remaining sections of the body of the engine, 11, 12, 13, and 14, are substantially alike, each comprising a disk having an annular flange which abuts against the preceding section, whereby a succession of chambers are formed, within each of which is lo` cated a disk, as 17, 18, 19, and 20, xed upon 6o.

so as to rotate with the shaft 16, which passes axially through the body of the engine, the several sections of which are centrally apertured for its accommodation. The first rotating disk 17 is in frictional contact with the 65 face of section 10 of the body of the engine,- and its contacting face is provided with a plurality of recesses 17, as shown, three in number, so arranged as to register withV the.

steam-ducts 10a and also with the exhaust-re- 7o cesses 10b, formed in the face of section 10 intermediate of the steam-ducts. The disk 17 being of less diameter than the chamber within which it rotates and the recesses 10b extending radially beyond its periphery, the

steam-ducts 11u in the disk portion of section 8o 11. These ducts are of any desired number and are directed obliquely, being inclined in the direction of rotation. The next rotating part comprises a disk 18 of less diameter than the disk 17 and having a plurality of radial 85 slots setting in from its periphery, these slots being oblique to its axis. Within these slots are set blades '24, the exposed portions of which are preferably curved and which have their ends 24a turned down to form an outer 9o periphery facing for the disk, the extreme end of one blade bearing against the back of the adjacent blade. The angle at which these blades are set is such that their faces are substantially perpendicular to the line at which the steam enters through the ducts'll, The blades 24 are secured tothe disk 18l by having the edges of their shanks cut so that lugs 24b may be turned backwardly to t within suitable recesses formed within the .faces of loo the disk. The impact of the steam-jets entering through the ducts 11 upon the blades..

24 imparts power to the disk, and the steam Vpasses through between the blades into the 19 and 2O are identical in construction with 1 the disk 18 and are supplied with steam in the same manner, and the nal exhaust is by means of a pipe 25, which*v is preferably located at the bottom of the engine, so as to carry away the water of condensation. As already stated, the number of sections of which the body of the engine is composed, and of course of the rotating disks, may be varied, and whether increased or diminished from the number shown the exhaust-pipe 25 is always locatedv i'n the last section.

As the engine is driven at an exceedingly high speed, it is desirable Vthat the shaft 16 be flexible, and to this end I show it as composed of two sections 16 16, the latter beingV journaled in-double floor-hangers 22, so as to prevent its vibration. The two sections of the shaft are united by means of a sleeve 27, fixed upon the end of section 16, and being ofV slightly greaterv bore than the diameter of the end of section 16, which enters it. pin 27 unites the sleeve 27 with the shaftsectionV 16, being fixed in the sleeve and passing loosely through a transverse aperture in theshaft, which flares at both ends, so that any vibration of the shaft-section 16 is not transmitted toV the shaft-section 16.A The other end of the shaft is journaled in a block 28,J which is mounted upon a iexible studshaft 29, fixed inl the hanger 2l. As the steam pressure is applied to the rotating disks in such manner as to give the shaft an end thrust, I interpose at the ends of the shaft bearing-blocks 29 and 30, and at the extreme ends of the shafting adjusting-screws 31' 32', are placed.

Suitable packingis interposed between the hubs of the rotating disks and the disk portions of the sections of the body of the engine, with which they co-operate, so as to prevent the escape of steam, and in order to providefor the vibration of the shaft I use in connection with this packing-blocks 26, which are free to slide upon the fixed part of the engine-body. Any form of elastic packing may beused, so as toinsure a tight joint at both ends of the hub.

At 38' is shown an oil-duct, which may of course be repeated in each one of the sections or replaced by any other suitable means for delivering oil to the bearings.,

The several rotating disks mayif desired, be all alike, and may be either of the type shown at 1 7Y or of the type shownlat 1S.

It willv be seen that the pressure ofv steam is reduced step by step, and that the available pressure upon each disk is the difference between. the pressurel at which the steamv enters the chamber in whichthe disk is located and the pressure at which it leaves that cham-- ber, so that the aggregate pressure applied to the rotating parts of the engine, assuming that the engine exhausts at zero, 1s the service pressure less the loss in friction due to the passage of the steam through the ducts andV in radiation.

I claiinas my invention- 1. The combination witha fixed casing having apertured ends, of a rotatable laterallymovable shaft projected loosely through such apertures, a disk within the casing and fixed upon such shaft and having radial impactp faces oblique to the direction of movement,

packing-plates mounted upon the shaft and having steam-tight connection therewith and being in sliding contact with the inner faces of the walls of the casing and covering the apertures therein, a steam-duct entering the casing and being directed toward the impactfaces, and an exhaust-passage leading from the casing.

2. The combination with a casing having its end walls apertured, a rotatable jointed shaft passing loosely through such apertures and being in some of its parts flexible,` a disk within the casing and xed upon the shaft and having radial impact-faces, an induction- Y passage directed toward the faces, and an exhaust-port, of packing-plates mounted upon the shaft and being in sliding contact with the inner faces of the walls of the casing and closing its apertures, and having` steam-tight connection with the shaft, substantially as described and for the purpose specified.V

3. The combination with a fixed casing having apertured ends, a rigid rotatable shaft, 16, located loosely within such apertures, a shaft 16, journaled in fixed bearings and having a universal-joint connection with the shaft, 16, a flexible shaft, 29,. secured in a hanger at the opposite end of the casing and being jointed to the end of the shaft, 16, a disk within the casing and fixed upon the shaft, 16, and having radial impactfacesan induction-duct directed toward the impactfaces, and an exhaust-port, of packing-plates interposed between the disk and the walls of the casing and having steam-tight connection IOC) with the shaft, 16, and sliding contact with the inner surfaces of the casing-walls, substantially as described and for the purpose specified.

4. The combination with a rotative shaftend of the shaft-section, 16, and means for applying power to such last-mentioned shaftsection to rotate it.

5. The combination with a xed casingha'ving induction and. discharge ports, and apertured ends of rotative disks within the case, andV having radial concave blades oblique to the direction of rotation, partitions crossing the interior of the casing so as to provide a separate compartment for each disk and having apertures in alinement with the apertures of the ends of the casing, steam-passages through such partitions so' disposed as to discharge upon the concave faces of the blades, a shaft, 16, for carrying the disks and in fixed relation thereto, and passing loosely through the Casin g, packing-plates xed upon the shaft and in sliding contact With the Walls and partitions of the casing to cover the ap- 

